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Colon and Rectal Surgery has been a standard reference for colorectal surgery fellows and practitioners for five editions.It has been mostly or entirely written by Marvin Corman throughout its life, and has been characterized by careful, thorough writing, and an art program that has become more outstanding as editions have rolled on.

Using a case-based approach, Colorectal Surgery: Clinical Care and Management provides practical, clinical and expert guidance to illustrate the best care and clinical management of patients requiring colorectal surgery for colorectal disease. Real-life cases illustrate the entire syllabus of GI/colorectal surgery, being specially selected to highlight topical or controversial aspects of colorectal care.  Cases have a consistent approach throughout and as well as outlining the actual management of each individual case, also offer an honest appraisal of the chosen management route, its successes and areas that could have been managed differently.   Pedagogic features such as learning and decision points boxes aid rapid understanding/learning, enabling the reader to improve their patient management. In full colour and containing over 100 outstanding clinical photos and slides to support the cases, each section also covers recent developments/ landmark papers/ scoring systems and a thorough discussion of clinical management based on the major society guidelines from NICE, ASCRS and ECCO.  Reliable, well-written and perfect for consultation in the clinical setting,  Colorectal Surgery: Modern Clinical Care and Management is the perfect tool for all members of the multi-disciplinary team managing patients suffering from colorectal disease, specifically GI surgeons, gastroenterologists, oncologists and general surgeons.

BackgroundPerhaps partly because intussusception in adults is rare, optimal treatment remains controversial. The aim of this study was to determine the appropriate surgical procedure for adult intussusception.MethodsA systematic search was undertaken using PubMed, Embase, and Web of Science from 1/1980 to 12/2016. Adults (> 15 years) with intussusception treated by surgical or conservative measures were included.ResultsOne thousand two hundred twenty-nine patients were identified from 40 retrospective case series. Pooled rates of malignant and benign tumors and idiopathic etiologies were 32.9% (95% CI 28.6–37.4), 37.4% (95% CI 32.7–42.3), and 15.1% (95% CI 11.7–19.3), respectively. Pooled rates of enteric, ileocolic, and colonic location types were 49.5% (95% CI 41.8–57.2), 29.1% (95% CI 23.0–36.1), and 19.9% (95% CI 16.3–24.1), respectively. Pooled rates of malignant tumors in enteric, ileocolic, and colonic intussusception were 22.5% (95% CI 18.3–27.3), 36.9% (95% CI 27.3–47.6), and 46.5% (31.1–62.6), respectively. Metastatic carcinoma was the main cause of malignant tumor in enteric intussusception. Conversely, primary adenocarcinoma was the main cause of malignant tumor in ileocolic and colonic intussusception. Considering the high rate of malignancy of colonic intussusception the majority of the studies surveyed recommend en bloc resection without reduction to avoid potential intraluminal seeding or venous tumor dissemination. Pooled rates of postoperative complications and mortality were 22.1% (95% CI 17.5–27.5) and 5.2% (95% CI 3.7–7.4), respectively.ConclusionWhereas enteric intussusception can be managed by reduction followed by resection, colonic intussusception should be resected en bloc. Due to the intermediate forms between enteric and colonic intussusception, a selective approach is recommended. Surgery remains the mainstay in adult intussusception.

Background This retrospective study compared the fast-track colon surgery program to conventional perioperative care and assessed factors that influence postoperative length of stay. Design This retrospective study included 124 fast-track and 119 conventional care colon surgical patients. Exclusion criteria were primary rectal disease, stoma, American Society of Anesthesiologists score IV, and Association Française de Chirurgie index 3 or 4. Laparoscopy was the preferred approach. Variables influencing length of stay were analyzed by multivariate linear and logistic regression. Results Overall mortality and complication rates were not significantly different between groups (fast-track vs. controls 0 vs. 0.8 %, 30.6 vs. 38.6 % respectively). As expected, median length of stay was significantly reduced in fast-track patients (3 vs. 6 days, p  < 0.001), but emergency readmission rate was higher (16.9 vs. 7.6 %, p  = 0.026), although rehospitalization rates were similar (8 vs. 4.2 %, not significant). Independent risk factors of increased length of stay were identified as age >69 years ( p  = 0.001), laparotomy ( p  = 0.011), and conventional perioperative care ( p  < 0.001). Conclusions The introduction of a fast-track program reduced postoperative length of stay without increasing complication rate. This study proposes a modulation of the program according to patient age and surgical approach.

Background While robotic-assisted colorectal surgery (RACS) is becoming increasingly popular, data comparing its outcomes to other established techniques remain limited to small case series. Moreover, there are no large studies evaluating the trends of RACS at the national level. Methods The Nationwide Inpatient Sample 2009–2010 was retrospectively reviewed for robotic-assisted and laparoscopic colorectal procedures performed for cancer, benign polyps, and diverticular disease. Trends in different settings, indications, and demographics were analyzed. Multivariate regression analysis was used to compare selected outcomes between RACS and conventional laparoscopic surgery (CLS). Results An estimated 128,288 colorectal procedures were performed through minimally invasive techniques over the study period, and RACS was used in 2.78 % of cases. From 2009 to 2010, the use of robotics increased in all hospital settings but was still more common in large, urban, and teaching hospitals. Rectal cancer was the most common indication for RACS, with a tendency toward its selective use in male patients. On multivariate analysis, robotic surgery was associated with higher hospital charges in colonic ($11,601.39; 95 % CI 6,921.82–16,280.97) and rectal cases ($12,964.90; 95 % CI 6,534.79–19,395.01), and higher rates of postoperative bleeding in colonic cases (OR = 2.15; 95 % CI 1.27– 3.65). RACS was similar to CLS with respect to length of hospital stay, morbidity, anastomotic leak, and ileus. Conversion to open surgery was significantly lower in robotic colonic and rectal procedures (0.41; 95 % CI 0.25–0.67) and (0.10; 95 % CI 0.06–0.16), respectively. Conclusions The use of RACS is still limited in the United States. However, its use increased over the study period despite higher associated charges and no real advantages over laparoscopy in terms of outcome. The one advantage is lower conversion rates.

BackgroundThe incidence of colonic stenosis, primarily caused by colon cancer and Crohn’s disease, is increasing each year. The development of safer stents for colonic stenosis is required because perforation associated with cancer stent placement worsens the prognosis and stent placement for anastomotic stenosis due to Crohn’s disease or colectomy is not first choice due to the high migration rate. The wall of the large intestine where the stent is inserted receives the complex forces from the peristaltic movement of the large intestine and stool in addition to the reaction tension of the stent, causing perforation and migration. Animal models may help develop new and safe stents, but no animal model closely reproduces the condition of human colonic stenosis. Herein, we present a novel animal model of colonic stenosis, which closely replicates the human colonic size.MethodsThe artificial colonic stenosis model was developed by wrapping the porcine colon with a silicone sheet after laparotomy. The usefulness of the model was evaluated by investigating the availability of endoscopic stent placement, morphological maintenance of colonic stenosis, adverse effects on pigs, and modeling time. The first three and the last three modeling times were analyzed using Student’s t-test.ResultsEndoscopic stent placement was performed in all cases without intraoperative complications. There were no postoperative model complications or deaths. Adhesions to the surrounding tissue in the abdominal cavity of the artificial colon stenosis were slight. The morphology of the isolated artificial stenoses was completely maintained, and no necrosis or perforation was observed.ConclusionsWe developed a novel and feasible animal model of colonic stenosis using pigs. We believe that this animal model will be useful for developing a safer stent for obstruction caused by benign diseases and colon cancer.

Background Hypoperfusion is an important risk factor for anastomotic leakage in colorectal surgery. This study was designed to evaluate the impact of fluorescence imaging on visualization of perfusion and subsequent change of transection line during left-sided robotic colorectal resections. Methods Patients scheduled for robotic left-sided colon or rectal resections were enrolled in this prospective, multicenter study. Resections were performed as per each surgeon’s preference. After complete colorectal mobilization, ligation of blood vessels, and distal transection of the bowel, the mesocolon was completely divided to the planned proximal or distal transection line, which was marked in white light. Indocyanine green was injected intravenously and the transection location(s) and/or distal rectal stump, if applicable, were re-assessed in fluorescent imaging mode. Imaging information, perioperative, and early postoperative outcomes were recorded. An independent video review of the surgeries was performed. Results Data for 40 patients (20 female/20 male) with a mean age of 63.9 years and a mean body mass index of 27.6 kg/m 2 were analyzed. Fluorescence imaging resulted in a change of the proximal transection location in 40 % (16/40) of patients. There was one change in the distal transection location in a patient with benign disease. The use of fluorescence imaging took an average of 5.1 min of the mean overall operative room time of 232 min. Two patients (5 %) with a change in transection line developed an anastomotic leak at postoperative days 15 and 40. Conclusion Fluorescence imaging provides additional information during determination of transection location in left-sided colorectal procedures. This results in a significant change of transection location, particularly at the proximal transection site. Further research needs to be conducted with larger patient cohorts and in comparative design to determine actual effect on anastomotic leak rate.

Background In recent years, conventional colorectal resection and its aftercare have increasingly become replaced by laparoscopic surgery and enhanced recovery after surgery (ERAS) pathways, respectively. Objective To ascertain whether combining laparoscopy and ERAS have additional value within colorectal surgery. Methods A systematic review with meta-analysis was performed with two primary research questions; does laparoscopy offer an advantage when all patients receive ERAS perioperative care and does ERAS offer advantages in a laparoscopically operated patient population. All randomised and controlled clinical trials were identified using MEDLINE, EMBASE and Cochrane databases. Results Primary search resulted in 319 hits. After inclusion criteria were applied, three RCTs and six CCTs were included in the meta-analysis. For laparoscopically operated patients with/without ERAS, no differences in morbidity were found and postoperative hospital stay favoured ERAS (MD −2.34 [−3.77, −0.91], Z  = 3.20, p  = 0.001). When comparing laparoscopy and open surgery within ERAS, major morbidity was significantly reduced in the laparoscopic group (OR 0.42 [0.26, 0.66], Z  = 3.73, p  = 0.006). Other outcome parameters showed no differences. Quality of included studies was considered moderate to poor overall with small sample sizes. Conclusion When laparoscopy and ERAS are combined, major morbidity and hospital stay are reduced. The reduction in morbidity seems to be due to laparoscopy rather than ERAS, so laparoscopy by itself offers independent advantages beyond ERAS care. Quality of included studies was moderate to poor, so conclusions should be regarded with some reservations.

Background and aimsPerforation is a life-threatening adverse event of colonoscopy that often requires hospitalization and surgery. We aimed to prospectively assess the incidence of colonoscopy-related perforation in a multicenter registry and to analyze the clinical factors associated with poor clinical outcomes.MethodsThis prospective observational study was conducted at six tertiary referral hospitals between 2017 and 2020, and included patients with colonic perforation after colonoscopy. Poor clinical outcomes were defined as mortality, surgery, and prolonged hospitalization (> 13 days). Logistic regression was used to identify factors associated with poor clinical outcomes.ResultsAmong 84,673 patients undergoing colonoscopy, 56 had colon perforation (0.66/1000, 95% confidence interval [CI] 0.51–0.86). Perforation occurred in 12 of 63,602 diagnostic colonoscopies (0.19/1000, 95% CI 0.11–0.33) and 44 of 21,071 therapeutic colonoscopies (2.09/1000, 95% CI 1.55–2.81). Of these, 15 (26.8%) patients underwent surgery, and 25 (44.6%) patients had a prolonged hospital stay. One patient (1.8%) died after perforation from a diagnostic colonoscopy. In the multivariate analysis, diagnostic colonoscopy (adjusted odds ratio [aOR] 196.43, p = 0.025) and abdominal rebound tenderness (aOR 17.82, p = 0.012) were independent risk factors for surgical treatment. The location of the sigmoid colon (aOR 18.57, p = 0.048), delayed recognition (aOR 187.71, p = 0.008), and abdominal tenderness (aOR 63.20, p = 0.017) were independent risk factors for prolonged hospitalization.ConclusionsThis prospective study demonstrated that the incidence of colonoscopy-related perforation was 0.66/1000. The incidence rate was higher in therapeutic colonoscopy, whereas the risk for undergoing surgery was higher in patients undergoing diagnostic colonoscopy. Colonoscopy indication (diagnostic vs. therapeutic), physical signs, the location of the sigmoid perforation, and delayed recognition were independent risk factors for poor clinical outcomes in colonoscopy-related perforation.